Q-switched erbium-doped fiber laser based on nanodiamond saturable absorber

Shakaty, Aseel A.; Hmood, Jassim K.; Mahdi, Bushra R.; Mahdi, R.I.; Al-Azzawi, Alabbas A.

doi:10.1016/j.optlastec.2021.107569

Cited by 24 publications

(7 citation statements)

References 61 publications

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“…The Q-switched fiber lasers are widely used in applications such as optical fiber sensing, material processing, and optical communications due to their virtues of narrow pulse width, high peak power, and high pulse energy. [1][2][3][4] Currently, most of Q-switched fiber lasers operate in the multilongitudinal-mode (MLM) regime. However, compared with MLM Q-switched fiber lasers, SLM Q-switched fiber lasers with ultra-narrow linewidth and long coherence length are very preferable in the fields of beam combining, nonlinear frequency conversion, and lidar.…”

Section: Introductionmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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We report a single-frequency linearly polarized Q-switched fiber laser based on a Nb2GeTe4 saturable absorber (SA). The Nb2GeTe4 SA triggers passive Q-switching of the laser, and an un-pumped Yb-doped fiber together with a 0.08-nm-bandwidth polarization-maintaining fiber Bragg grating act as an ultra-narrow bandwidth filter to realize single-longitudinal-mode (SLM) oscillation. The devices used in the laser are all polarization-maintaining to ensure linearly polarized laser output. Stable SLM linearly polarized Q-switching operation at 1064.6 nm is successfully achieved with a shortest pulse width of 1.36 μs, a linewidth of 28.4 MHz, a repetition rate of 28.3-95.9 kHz, and a polarization extinction ratio of about 30 dB. It is believed that the single-frequency linearly polarized pulsed fiber laser studied in this paper has great application value in gravitational wave detection, beam combining, nonlinear frequency conversion, and other fields.

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Section: Introductionmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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“…Q-switched fiber lasers operating in the mid-infrared region near 2 μm have received tremendous research attention in recent years, owing to their wide area of applications including optical communication, materials processing, spectroscopy, and light detection and ranging. [1][2][3][4][5] These lasers can be constructed using thuliumdoped fiber (TDF) or thulium-holmium codoped fiber (THDF) as an active medium. Q-switched pulses in the 2μm region can be passively produced by inserting a saturable absorber (SA) device into the TDF laser (TDFL) or THDF laser cavity to modulate the loss or Q-factor.…”

Section: Introductionmentioning

confidence: 99%

“…Q‐switched fiber lasers operating in the mid‐infrared region near 2 μm have received tremendous research attention in recent years, owing to their wide area of applications including optical communication, materials processing, spectroscopy, and light detection and ranging 1–5 . These lasers can be constructed using thulium‐doped fiber (TDF) or thulium–holmium codoped fiber (THDF) as an active medium.…”

Section: Introductionmentioning

confidence: 99%

Generation of bright‐dark Q‐switched pulse pair in thulium‐doped fiber laser cavity with titanium aluminum carbide absorber

Omar

Musa

Rosol

et al. 2023

Micro & Optical Tech Letters

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The proposed titanium aluminum carbide (Ti3AlC2) film‐based saturable absorber (SA) for Q‐switching in thulium‐doped fiber laser (TDFL) cavity offers a cost‐effective and practical alternative to conventional SA materials such as graphene or semiconductor. The Ti3AlC2 film was produced using a simple and low‐cost casting approach with polyvinyl alcohol as a binder. The SA was devised from the film using a sandwich‐structured fiber‐ferrule platform and integrated into a TDFL ring cavity. The generated Q‐switched pulses were stable and had a repetition rate of up to 20.82 kHz with a minimum pulse width of 3.167 µs and a maximum pulse energy of 58.12 nJ. The Q‐switched laser produced the bright‐dark pulse pair. These results demonstrate the potential of Ti3AlC2 as a promising SA material for practical applications in the field of fiber lasers.

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“…Fullerene is a category of carbon allotropes, which are conceptually sheets of graphene rolled in a form of tubes or spheres [12,13]. The carbon nanotubes have drawn great attention due to their mechanical strength and their electrical properties, which are convenient for various photonics applications [14,15,71]. Carbon is a well-known form of solid-state allotropes with various properties and structure, such as sp 3 -bonded diamond, and sp 2 bonded graphite [16,17].…”

Section: Introductionmentioning

confidence: 99%

Characterizations of Nanodiamond Composite Film for Photonics Applications

Shakaty¹,

Hmood²,

Mahdi³

2022

JASN

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Due to its flexibility, small size and low cost, the nanomaterials films are widely desired in optical applications. In this study, a solid nanodiamond (ND) film was fabricated and characterized for photonics applications. The nanocomposite films were prepared by drop casting method where ND was embedded into poly Vinylidene fluoride-trifluoroethylene (PVDF-TrFE) as a host polymer. Both physical and optical properties of the prepared film were investigated. To analyze the structure of fabricated ND-PVDF-TrFE film, various measurement methods were adopted, including a field emission scanning electron microscopy (FESEM), Fourier transform spectroscopy (FTIR), and x-ray diffraction. The nonlinear absorption property of ND-PVDF-TrFE film was studied by balanced twin detector technique (BTDT) using mode-locked fiber laser with pulse width of 1.4 ps at wavelength of 1566 nm. The results showed that the saturable-absorption features of ND-PVDF-TrFE film possess a good nonlinear performance. Furthermore, a good nonlinearity with a high modulation depth makes the ND-PVDF-TrFE film a good candidate to use in many photonics systems such as saturable absorber (SA) in passive Q-switched or mode-locked fiber lasers.

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Q-switched erbium-doped fiber laser based on nanodiamond saturable absorber

Cited by 24 publications

References 61 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Generation of bright‐dark Q‐switched pulse pair in thulium‐doped fiber laser cavity with titanium aluminum carbide absorber

Characterizations of Nanodiamond Composite Film for Photonics Applications

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Q-switched erbium-doped fiber laser based on nanodiamond saturable absorber

Cited by 24 publications

References 61 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Generation of bright‐dark Q‐switched pulse pair in thulium‐doped fiber laser cavity with titanium aluminum carbide absorber

Characterizations of Nanodiamond Composite Film for Photonics Applications

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Product

Resources

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Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber